Re Important

marinabrian · 27th February 2012, 22:36

Hi as Russ has pointed out, this is a very real issue with the immobiliser system on our cars.
This is the third time we have encountered this problem, firstly on my own new car, where it had been incorrectly diagnosed as needing a new ecu, secondly here http://www.the75andztclub.co.uk/foru...d.php?t=105390 , and one of Russ's customers last Sunday.
There is information relating to this problem in BMW circles, whereupon the only known cure was to order a new key, however as Russ says, we are able to rescue "scrambled" keys, however the EWS immobiliser would require removal from the car for reprogramming.
Sorry didn't get this in in time before Reebs locked the thread

Brian

Reebs · 27th February 2012, 23:10

You've got to be quick around here Brian

Anyway, I've copied your reply into Russ's sticky again for reference.

marinabrian · 27th February 2012, 23:32

Cheers for that Reebs

Brian

Dragrad · 27th February 2012, 23:33

Quote:

Originally Posted by Reebs

You've got to be quick around here Brian

Anyway, I've copied your reply into Russ's sticky again for reference.

And pdf'd

Reebs · 27th February 2012, 23:34

I now see that Dragrad has placed a copy in the How to section as well

Dragrad · 28th February 2012, 00:01

Good information is worthy of note and posterity

BigRuss · 28th February 2012, 08:51

I had a chat about this with Brian last evening and we both decided that it was important to notify owners of this problem.

If we can stop another car suffering from this fault then it will be worthwhile.

In all the cases we have come across battery issues have been present.

In the latest case I was in the process of replacing a dead transponder for a members car as one of his keys had stopped working. I configured a new transponder and on re-fitting the tested the new transponder and key to see if it worked.

Unknowingly the battery voltage had droppped and when I tried to start the car with the new transponder fitted to the key I got the familiar flashing of the lights, thinking the transponder may have a data fault tried the original and that did the same.

I placed the car on charge and after the battery recovered, tried again, both keys would not start the car and the engine immobilised symbol illuminated in the instrument pack.

T4 diagnostics on the keys showed that both keys had data faults and would now not start the car, a nightmare as you can imagine.
Fortunately as always a copy of the immobiliser and key information had been taken when the new transponder had been coded. Because of this I was able to quickly re-sync the keys and all was well.

Talking with the owner the battery had gone "flat" when the original fault with his key had occurred.

Russ

greendriver · 28th February 2012, 09:12

Another reason why our cars could be broken. Garages will tell the owners too expensive to do as new ecu reqd. Shame, when this info has now come to light.

Thanks for the invaluable info. Something to consider for the future

David F · 28th February 2012, 09:29

This sounds serious?!

So what can be done to prevent it?
Where is the sticky .pdf?

I only have one key, does that make it worse?

My list of jobs is getting longer and longer?

Cheers

BigRuss · 28th February 2012, 09:53

Quote:

Originally Posted by David F

This sounds serious?!

So what can be done to prevent it?
Where is the sticky .pdf?

I only have one key, does that make it worse?

My list of jobs is getting longer and longer?

Cheers

The sticky is at the top of this section of the forum:
http://www.the75andztclub.co.uk/foru...d.php?t=106447

It is also in the How-to section.

It is a potential problem that owners should be aware of should their car be suffering from a flat battery.

Russ

27th February 2012, 22:36	#1
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	Re Important Hi as Russ has pointed out, this is a very real issue with the immobiliser system on our cars. This is the third time we have encountered this problem, firstly on my own new car, where it had been incorrectly diagnosed as needing a new ecu, secondly here http://www.the75andztclub.co.uk/foru...d.php?t=105390 , and one of Russ's customers last Sunday. There is information relating to this problem in BMW circles, whereupon the only known cure was to order a new key, however as Russ says, we are able to rescue "scrambled" keys, however the EWS immobiliser would require removal from the car for reprogramming. Sorry didn't get this in in time before Reebs locked the thread Brian

27th February 2012, 23:10	#2
Reebs Owners Club Director Rover 75 Conn SE V6 / MG ZT 260 SE V8 / MG ZT 180 SE V6 Join Date: Feb 2007 Location: Southampton Posts: 20,966 Thanks: 645 Thanked 6,851 Times in 2,537 Posts	You've got to be quick around here Brian Anyway, I've copied your reply into Russ's sticky again for reference. __________________ Check your trim here . Check your spec here Check your colour here . Check Project Drive here Check your original price here

27th February 2012, 23:34	#5
Reebs Owners Club Director Rover 75 Conn SE V6 / MG ZT 260 SE V8 / MG ZT 180 SE V6 Join Date: Feb 2007 Location: Southampton Posts: 20,966 Thanks: 645 Thanked 6,851 Times in 2,537 Posts	I now see that Dragrad has placed a copy in the How to section as well __________________ Check your trim here . Check your spec here Check your colour here . Check Project Drive here Check your original price here

28th February 2012, 00:01	#6
Dragrad This is my second home *None DROWNED** Join Date: Aug 2007 Location: Cardigan Posts: 33,339 Thanks: 1,257 Thanked 1,664 Times in 1,081 Posts	Good information is worthy of note and posterity __________________ Andrew Ich Dien Problem solving is... lateral thinking SEARCH FIRST ...ASK LATER...

28th February 2012, 08:51	#7
BigRuss Premium Trader 75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007 Location: Liversedge, West Yorkshire Posts: 5,414 Thanks: 1,105 Thanked 1,340 Times in 661 Posts	I had a chat about this with Brian last evening and we both decided that it was important to notify owners of this problem. If we can stop another car suffering from this fault then it will be worthwhile. In all the cases we have come across battery issues have been present. In the latest case I was in the process of replacing a dead transponder for a members car as one of his keys had stopped working. I configured a new transponder and on re-fitting the tested the new transponder and key to see if it worked. Unknowingly the battery voltage had droppped and when I tried to start the car with the new transponder fitted to the key I got the familiar flashing of the lights, thinking the transponder may have a data fault tried the original and that did the same. I placed the car on charge and after the battery recovered, tried again, both keys would not start the car and the engine immobilised symbol illuminated in the instrument pack. T4 diagnostics on the keys showed that both keys had data faults and would now not start the car, a nightmare as you can imagine. Fortunately as always a copy of the immobiliser and key information had been taken when the new transponder had been coded. Because of this I was able to quickly re-sync the keys and all was well. Talking with the owner the battery had gone "flat" when the original fault with his key had occurred. Russ __________________ Replacement Key Service http://https://the75andztclub.co.uk/...d.php?t=244732 Full T4 Testbook diagnostics available. Diesel ECU repair and replacement. Options enabled or disabled as required. Diesel X-Power 135 and 160bhp, Rover 1.8T 150 to 160 MG 160 V6 to 177 upgrades available P.M. for details.

27th February 2012, 23:32	#3
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	Cheers for that Reebs Brian

28th February 2012, 09:12	#8
greendriver This is my second home MG ZTT 180 in Poseidon Join Date: Feb 2011 Location: Croydon Posts: 3,745 Thanks: 44 Thanked 86 Times in 75 Posts	Another reason why our cars could be broken. Garages will tell the owners too expensive to do as new ecu reqd. Shame, when this info has now come to light. Thanks for the invaluable info. Something to consider for the future __________________ *None of my troubles are Rover*

28th February 2012, 09:29	#9
David F Regular poster 75 CDT Club SE Join Date: Feb 2012 Location: Newcastle-upon-Tyne Posts: 97 Thanks: 0 Thanked 0 Times in 0 Posts	This sounds serious?! So what can be done to prevent it? Where is the sticky .pdf? I only have one key, does that make it worse? My list of jobs is getting longer and longer? Cheers